Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

49.1°F

Measurement Time: Monday, March 23, 2026, 11:30 PM PDT

Temperature Locations

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Local Points of Interest

Stanislaus National Forest; Colfax Spring, CA; Mather, CA; Harden Flat, CA

Tuolumne River

Station Name: TUOLUMNE R BL EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,369 feet

Nearest Address:
Cherry Lake Rd
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.8815908, -119.9701824

Nearby Water Temperatures

Tuolumne River, Groveland, CA (1.3 mi)
Cherry Creek, Groveland, CA (6.6 mi)
Tuolumne River, Groveland, CA (10.1 mi)
Tuolumne River, Groveland, CA (17.1 mi)
Merced River, Yosemite Valley, CA (24.7 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (51.3 mi)
Deadman Creek, Mammoth Lakes, CA (57 mi)
Hot Creek, Mammoth Lakes, CA (62.8 mi)
Hot Creek, Mammoth Lakes, CA (63.4 mi)
San Joaquin River, Friant, CA (63.4 mi)
Hot Creek, Mammoth Lakes, CA (64.6 mi)
Trout Creek, South Lake Tahoe, CA (71.7 mi)
Upper Truckee River, South Lake Tahoe, CA (71.9 mi)
General Creek, Tahoma, CA (81.3 mi)
South Fork American River, Rescue, CA (82.9 mi)

Weather for Groveland, California

Current Weather

62.2°F
Clear
Clear
62.2°F
62.2°F
29%
NE 4.7 mph
9.9 mph
62.2°F
29.7°F
0 in
0%
6 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 77°F
L: 60°F
Sunny
Wed
H: 73°F
L: 63°F
Partly Cloudy
Thu
H: 67°F
L: 57°F
Overcast
Fri
H: 73°F
L: 58°F
Sunny
Sat
H: 72°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 5.35 μg/m3
PM10: 11.95 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:06 PM
Sunset: 7:16 PM
Daylight: 12 hrs 18 mins
Moonrise: 10:28 AM
Moon Transit: 6:25 PM
Moonset: 1:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
5:55 PM - 8:25 PM

Minor Periods

9:58 AM - 11:28 AM
12:47 AM - 2:17 AM

Action Rating: 2 out of 5

Tuesday, March 24, 2026

Weather Forecast

Sunny
77.2°F
60.1°F
68.6°F
41%
0 in
0%
0%
7.2 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 5.88 μg/m3
PM10: 10.69 μg/m3
Carbon Monoxide: 133.29 μg/m3
Nitrogen Dioxide: 7.35 μg/m3
Sulphur Dioxide: 2.14 μg/m3
Ozone: 58.36 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:06 PM
Sunset: 7:16 PM
Daylight: 12 hrs 18 mins
Moonrise: 10:28 AM
Moon Transit: 6:25 PM
Moonset: 1:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
5:55 PM - 8:25 PM

Minor Periods

9:58 AM - 11:28 AM
12:47 AM - 2:17 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Sunny
73.2°F
63.1°F
67.7°F
48%
0 in
0%
0%
8.1 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 5.84 μg/m3
PM10: 10.37 μg/m3
Carbon Monoxide: 141.65 μg/m3
Nitrogen Dioxide: 7.08 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 62.88 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:05 PM
Sunset: 7:16 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:31 AM
Moon Transit: 7:27 PM
Moonset: 2:24 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
6:57 PM - 9:27 PM

Minor Periods

11:01 AM - 12:31 AM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Partly Cloudy
67.3°F
57.4°F
63.1°F
53%
0 in
0%
0%
6.7 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 6.38 μg/m3
PM10: 12.02 μg/m3
Carbon Monoxide: 154.89 μg/m3
Nitrogen Dioxide: 7.54 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 60.04 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 23 mins
Moonrise: 12:41 AM
Moon Transit: 8:27 PM
Moonset: 3:19 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
7:57 PM - 10:27 PM

Minor Periods

12:11 AM - 1:41 PM
2:49 AM - 4:19 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Overcast
73.1°F
57.8°F
64°F
48%
0 in
0%
0%
6.7 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 5.23 μg/m3
PM10: 12.79 μg/m3
Carbon Monoxide: 173.45 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 80.24 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:05 PM
Sunset: 7:18 PM
Daylight: 12 hrs 26 mins
Moonrise: 1:53 PM
Moon Transit: 9:22 PM
Moonset: 4:04 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
8:52 PM - 11:22 PM

Minor Periods

1:23 PM - 2:53 PM
3:34 AM - 5:04 AM

Action Rating: 3 out of 5

Saturday, March 28, 2026

Weather Forecast

Sunny
72°F
58.4°F
62.9°F
48%
0 in
0%
0%
7.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.43 μg/m3
PM10: 11.49 μg/m3
Carbon Monoxide: 233.4 μg/m3
Nitrogen Dioxide: 10.06 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 61.46 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:04 PM
Sunset: 7:19 PM
Daylight: 12 hrs 28 mins
Moonrise: 3:04 PM
Moon Transit: 10:12 PM
Moonset: 4:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

5:09 AM - 7:39 AM
12:00 AM - 12:00 AM

Minor Periods

2:34 PM - 4:04 PM
4:11 AM - 5:41 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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